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相关概念视频

Computed Tomography01:10

Computed Tomography

7.9K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
7.9K
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

261
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
261
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

261
Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
261
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

763
Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
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相关实验视频

Updated: Jan 9, 2026

Dual-phase Cone-beam Computed Tomography to See, Reach, and Treat Hepatocellular Carcinoma during Drug-eluting Beads Transarterial Chemo-embolization
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低剂量CBCT图像重建:一个审查.

Jiangyuan Shi1, Ying Song2, Guangjun Li1

  • 1Radiophysical Technology Center, Cancer Center, West China Hospital, Sichuan University, No. 37 Guoxue Alley, 610065, Chengdu, China.

Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al]
|December 5, 2025
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概括

低剂量圆束计算机断层扫描 (CBCT) 图像重建可以降低辐射风险,同时保持诊断质量. 本综述分析了当前的方法,挑战和未来更安全的医学成像的方向.

关键词:
分析重建的分析重建.深度学习是一种深度学习.图像处理 图像处理图像质量提升 图像质量提升代重建的重建 代的重建

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Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor
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A Sectioning, Coring, and Image Processing Guide for High-Throughput Cortical Bone Sample Procurement and Analysis for Synchrotron Micro-CT
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相关实验视频

Last Updated: Jan 9, 2026

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科学领域:

  • 医疗成像医学成像
  • 放射学 放射学是指放射学
  • 图像重建 图像的重建

背景情况:

  • 圆束计算断层扫描 (CBCT) 在医学上至关重要,但涉及辐射暴露.
  • 尽量减少辐射剂量对于患者安全至关重要,而不会影响诊断图像质量.

研究的目的:

  • 审查和分析最近低剂量CBCT图像重建技术的进展.
  • 提供对该领域的方法,性能,挑战和未来趋势的全面概述.

主要方法:

  • 系统的文献搜索和重建算法的分析.
  • 探索低剂量CBCT的分析,代和深度学习方法.
  • 对剂量减少策略和性能评估的审查.

主要成果:

  • 确定了低剂量CBCT重建的关键方法,包括分析,代和深度学习算法.
  • 评估了不同重建技术的性能和应用.
  • 突出了当前在实现最佳低剂量CBCT方面的挑战和局限性.

结论:

  • 低剂量CBCT重建正在推进,提供了改善的患者安全.
  • 需要对先进的算法和剂量减少策略进行进一步的研究.
  • 本综述是加强CBCT临床应用和患者护理的参考.